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Subject
- Environment[remove]43
- Oceans26
- Boundaries15
- Biology and Ecology13
- Transportation6
- Planning and Cadastral5
- Land cover4
- Protected areas4
- Biodiversity3
- Conservation easements3
- Forests and forestry3
- Fragmented landscapes3
- Geoscientific Information3
- Inland Waters3
- Landscape ecology3
- Open spaces3
- Public lands--Fees3
- Biotic communities2
- Coastal zone management2
- Ecological regions2